WMSIC Electronic Components

YANGJIE BZT52C20

ModelBZT52C20
PackageSOD-123
BrandYANGJIE
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
YANGJIE BZT52C20
Type
SOD-123
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
BZT52C20
Electronic Component
1
Package
SOD-123
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0263434834
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BZT52C20 产品概述

一、主要参数概览

BZT52C20(品牌:YANGJIE / 扬杰),为 SOD-123 表面贴装型小功率稳压二极管,典型技术参数如下:

  • 稳压值(标称):20V,稳压范围 18.8V ~ 21.2V(约 ±6%)
  • 反向漏电流 Ir:100 nA @ 14V(低电流区漏泄小)
  • 耗散功率 Pd:500 mW(器件最大功耗)
  • 动态阻抗 Zzt:55 Ω;低电流区阻抗 Zzk:225 Ω(分别反映稳压区与接近拐点时的交流阻抗特性)
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:SOD-123(小型表贴封装,利于高密度贴装)

二、产品特点

  • 小型表贴封装(SOD-123),体积小、便于自动贴装与回流焊工艺,适配现代 SMT 生产线。
  • 低反向漏电流,适合对静态电流敏感的偏置与参考电路。
  • 中等稳压电平(20V),适用于需要约20V稳压或电压钳位的应用场景。
  • 动态阻抗特性表明在稳压区具有较稳定的交流响应;而在接近击穿拐点或低电流区阻抗上升,需注意电路偏流设计。

三、典型应用场景

  • 小功率基准和偏置电路:为运放或其他模拟电路提供参考/偏置电压(采用串联限流电阻)。
  • 过压钳位与保护:对小型电源或信号线进行电压抑制,避免高压冲击损坏下游器件。
  • 消费电子与便携设备中的低功耗稳压单元:适合对尺寸和散热要求较高的场合。
  • 工业控制、传感器接口中的保护与参考电路(考虑环境温度范围)。

四、设计与使用建议

  • 最大稳压电流估算:在理想情况下,Iz_max ≈ Pd / Vz = 0.5 W / 20 V ≈ 25 mA。实际使用时应留裕量,避免长期在极限功耗下工作。
  • 建议用串联限流电阻配合使用,以限制稳压二极管上的电流和缓解瞬态冲击。
  • 注意热设计:SOD-123 封装散热能力有限,长期工作时需考虑器件结温,避免在高环境温度下超过额定结温。
  • 在低电流工作点(微安至毫安量级)时,动态阻抗增大,稳压精度会下降;若需高精度参考,应提高偏流或选择低阻抗型号。
  • 回流焊与存储按照厂方推荐温度曲线执行,避免超温导致封装或背涂损伤。

五、封装与可靠性

SOD-123 为常用表贴封装,适合自动化贴装和标准回流焊流程。器件额定结温范围宽(-55 ℃ 至 +150 ℃),适应工业级环境。为保证长期可靠性,实际电路中应控制结温不长期接近上限,并避免重复大幅温度循环引起机械应力。

六、选型与采购建议

  • 若需更低动态阻抗或更高功率裕度,建议参考更大功耗或专用参考源产品。
  • 采购时确认扬杰(YANGJIE)原厂或授权代理渠道,关注批次一致性与出厂检测报告。
  • 若应用对稳压精度、噪声或温漂有更高要求,可向供应商索取详细曲线(V-Z 曲线、Zzt/Zzk 测试条件、温度系数等)以便精确设计。

总结:BZT52C20(YANGJIE,SOD-123)是一款面向小功率稳压与保护应用的 20V 稳压二极管,具有小型化、低漏电、适合表贴工艺等优点。在电路设计中应重视功率限流与热管理,以确保长期稳定可靠运行。

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